Bsi bs en 00714 1995 (1999) bs 2782 11 mtd 1123f 1995

www bzfxw com BRITISH STANDARD BS EN 714 1995 BS 2782 11 Method 1123F 1995 Thermoplastics piping systems — Non end load bearing elastomeric sealing ring type joints between pressure pipes and moulded[.]

BS 2782-11: Method 1123F:1995

Thermoplastics piping

systems —

Non-end-load-bearing

elastomeric sealing

ring type joints

between pressure pipes

and moulded fittings —

Test method for

leaktightness under

internal hydrostatic

pressure without end

thrust

The European Standard EN 714:1994 has the status of a

British Standard

UDC 621.643.4-036.074:621.643.2-98:62-76:620.165.29

BS EN 714:1995

This British Standard, having

been prepared under the

direction of the Sector Board

for Materials and Chemicals,

was published under the

authority of the Standards

Board and comes

into effect on

15 May 1995

© BSI 11-1999

The following BSI references

relate to the work on this

standard:

Committee reference PRI/61

Draft for comment 92/41354 DC

ISBN 0 580 23967 5

Committees responsible for this British Standard

The preparation of this British Standard was entrusted to Technical Committee PRI/61, Plastics piping systems and components, upon which the following bodies were represented:

British Gas plc British Plastics Federation British Plumbing Fittings Manufacturers’ Association British Valve and Actuator Manufacturers’ Association Department of the Environment (British Board of Agrément) Department of the Environment (Building Research Establishment) Department of the Environment (Property and Buildings Directorate) Department of Transport

Electricity Association Federation of Civil Engineering Contractors Health and Safety Executive

Institute of Building Control Institute of Materials Institution of Civil Engineers Institution of Gas Engineers Institution of Water and Environmental Management National Association of Plumbing, Heating and Mechanical Services Contractors

Pipeline Industries Guild Plastics Land Drainage Manufacturers’ Association Society of British Water Industries

Water Companies Association Water Services Association of England and Wales The following bodies were also represented in the drafting of the standard, through subcommittees and panels:

ERA Technology Ltd

Engineering Equipment and Materials Users’ Association

Amendments issued since publication

Amd No Date Comments

© BSI 11-1999 i

Contents

Page

Figure 1 — Illustration of method of connection 3

BS EN 714:1995

National foreword

This British Standard has been prepared by Technical Committee PRI/61 and is

the English language version of EN 714:1994 Thermoplastics piping systems —

Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings — Test method for leaktightness under internal hydrostatic pressure without end thrust, published by the European Committee for

Standardization (CEN)

It is incorporated into BS 2782 Methods of testing plastics —

Part 11: Thermoplastics pipes, fittings and valves, as Method 1123F:1995 It is a

new method intended for use in conjunction with European Standards under preparation for plastics piping specifications and for any new or revised UK piping standards for which it is considered applicable

WARNING This British Standard which is the English language version of

EN 714:1994 does not necessarily detail all the precautions necessary to meet the requirements of the Health and Safety at Work etc Act 1974 Attention should be paid to any appropriate safety precautions and the method should be operated only by trained personnel

A British Standard does not purport to include all the necessary provisions of a contract Users of British Standards are responsible for their correct application

Compliance with a British Standard does not of itself confer immunity from legal obligations.

Summary of pages

This document comprises a front cover, an inside front cover, pages i and ii, the EN title page, pages 2 to 4 and a back cover

This standard has been updated (see copyright date) and may have had amendments incorporated This will be indicated in the amendment table on the inside front cover

UDC 621.643.4-036.074:621.643.2-98:62-76:620.165.29

Descriptors: Pipelines, pressure pipes, plastics tubes, pipe fittings, thermoplastic resins, joining, sealing rings, rubber, fluid-tightness

test, pressure tests, hydrostatic pressure

English version

Thermoplastics piping systems — Non-end-load-bearing elastomeric sealing ring type joints between pressure pipes and moulded fittings — Test method for leaktightness

under internal hydrostatic pressure without end thrust

Systèmes de canalisations thermoplastiques —

Assemblages à bague d’étanchéité en

élastomère sans effet de fond entre tubes avec

pression et raccords moulés — Méthode d’essai

d’étanchéité sous pression hydrostatique

interne sans effet de fond

Rohrleitungssysteme aus Thermoplasten — Nicht zugfeste Verbindungen mit elastomeren Dichtringen zwischen Druckrohren und Formstücken — Prüfverfahren für die Dichtheit unter hydrostatischen Innendruck ohne Axialbeanspruchung

This European Standard was approved by CEN on 1994-04-11 CEN members

are bound to comply with the CEN/CENELEC Internal Regulations which

stipulate the conditions for giving this European Standard the status of a

national standard without any alteration

Up-to-date lists and bibliographical references concerning such national

standards may be obtained on application to the Central Secretariat or to any

CEN member

The European Standards exist in three official versions (English, French,

German) A version in any other language made by translation under the

responsibility of a CEN member into its own language and notified to the

Central Secretariat has the same status as the official versions

CEN members are the national standards bodies of Austria, Belgium,

Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,

Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and

United Kingdom

CEN

European Committee for Standardization Comité Européen de Normalisation Europäisches Komitee für Normung

Central Secretariat: rue de Stassart 36, B-1050 Brussels

© 1994 Copyright reserved to CEN members

Ref No EN 714:1994 E

EN 714:1994

© BSI 11-1999

2

Foreword

This standard was prepared by CEN/TC 155,

Plastics piping systems and ducting systems

This standard is based on the International

Standard ISO 3603:1977 Fittings for unplasticized

polyvinyl chloride (PVC) for pressure pipes with

elastic sealing ring type joints — Pressure test for

leakproofness, prepared by the International

Organization for Standardization (ISO) It is a

modification of ISO 3603:1977 for reasons of

applicability to other plastics materials and/or other

test conditions and alignment with texts of other

standards on test methods

The modifications are:

— no specific material is mentioned;

— test parameters, except those common to all

plastics, are omitted;

— no material-dependent requirements are

given;

— editorial changes have been introduced

The material-dependent parameters and/or

performance requirements are incorporated in the

System Standard(s) concerned

No existing European Standard is superseded by

this standard

This standard is one of a series of standards on test

methods which support System Standards for

plastics piping systems and ducting systems

This European Standard shall be given the status of

a national standard, either by publication of an

identical text or by endorsement, at the latest by

October 1994, and conflicting national standards

shall be withdrawn at the latest by October 1994

According to the CEN/CENELEC Internal

Regulations, the following countries are bound to

implement this European Standard: Belgium,

Denmark, Finland, France, Germany, Greece,

Iceland, Ireland, Italy, Luxembourg, Netherlands,

Norway, Portugal, Spain, United Kingdom

1 Scope

This European Standard specifies a method for

testing the leaktightness, under internal

hydrostatic pressure without end thrust, of

assemblies between fittings with elastomeric

sealing rings and thermoplastics components for

pressure piping systems

2 Principle

A test piece consisting of a pipe and fitting assembly

having at least one joint of the type to be tested is

exposed at a specified temperature to a specified

internal hydrostatic pressure without associated

end thrust The leaktightness of the assembled joint

in air is checked during the test period, when the

pressure is higher than the nominal pressure for

which the pipe is rated

NOTE It is assumed that the following test parameters are set

by the standard making reference to this standard:

a) the free length, L, of the pipe in the test assembly

(see clause 4 and Figure 1);

b) the test temperature, T, in degrees Celsius (see clause 5);

c) the test pressure, p (see clause 5).

3 Apparatus

WARNING It is necessary to take account of the

consequences of failure of the components under

pressure and to contain the test piece or apparatus

accordingly

3.1 Pressure source, connected to the test piece,

capable of maintaining a specified internal water

pressure to an accuracy of ± 2 %

3.2 Compensating device, to prevent longitudinal

forces being imposed on the test piece by end thrust

induced by internal hydrostatic pressure

3.3 Pressure measuring device, capable of checking

conformity of the test pressure to 3.1 and clause 5.

NOTE Means may be necessary for control of temperature.

4 Test piece

The test piece shall consist of an assembly of

pipe-section(s) and fitting(s) or socketed pipe(s)

including at least one joint of the type to be tested

Components for the test piece shall not be

assembled until at least 24 h after their production

The assembly shall comprise the combination,

within the applicable tolerances, of the smallest

available spigot diameter, the largest available

socket diameter in the zone of the sealing ring

housing and, if not anchored, a seal of the smallest

available cross section

The length(s) of the section(s) of pipe to be connected

shall be such that the free length, L, of pipe between

sockets and between a socket and the test equipment(s) or terminal seal(s) shall be at least equal to the nominal outside diameter of the pipe with a minimum of 250 mm unless otherwise specified in the referring standard (see Figure 1)

The assembly of the joints shall be carried out in accordance with the manufacturer’s instructions

5 Procedure

Set up the test piece in the test equipment, with seals and supports such that longitudinal stresses

will be compensated (see 3.2).

Fill the test piece with water at the specified

temperature T ± 2 °C.

Ensure that all air is removed and excluded from the test piece for the remainder of the procedure

Secure the test piece to the apparatus

Wait at least 20 min, to ensure equalization of temperature

Remove any moisture from the outside surface of the test piece

Apply pressure at a steady rate so as to achieve the

specified hydrostatic test pressure, p [see item c) of

the note to clause 2], in (30 ± 5) s, except for testing

fittings for pipes of nominal outside diameters greater than 630 mm

Key

Lis the free length of the pipe

Figure 1 — Illustration of method

of connection

EN 714:1994

In such cases, achieve the specified hydrostatic test

pressure, p, in the shortest time practicable

between 30 s and 300 s, depending on the size of the

test piece components and capabilities of the

pressurizing equipment

Record the time taken to achieve the test pressure

Maintain the specified temperature, T,

within ± 2 °C, and pressure, p, within ± 2 %, while

monitoring the apparatus for any indication of a loss

of pressure and the test piece for any signs of

leakage for a period of at least 1 h or until prior

failure as follows:

a) terminate the test and record the observations

if the pressure cannot be maintained and the

losses occurred at or within one pipe diameter of

the joint under test;

b) repeat the test if the pipe(s) fail(s) at a position

further than one diameter from the joint(s) under

test

6 Test report

The test report shall include the following information:

a) a reference to this standard and to the referring standard;

b) the identity of the components [e.g fitting(s), pipe(s), seal(s)] comprising the joints under test and their measured dimensions;

c) the free length(s), L, of the pipe component(s) of

the test piece, in millimetres;

d) the test temperature, T, in degrees Celsius;

e) the test pressure, p, in bars1);

f) the time taken to achieve the test pressure, p, and the time under pressure, t, in minutes;

g) a report of any signs of leakage observed or otherwise a statement that the joint(s) did not leak;

h) any factors which may have affected the results, such as any incidents or any operating details not specified in this standard;

i) the date of test

1) 1 bar = 10 5 N/m 2

blank

BS EN

714:1995

BS 2782-11:

Method

1123F:1995

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